Commit Graph

10 Commits

Author SHA1 Message Date
mjg
a9faac8f4b Avoid dynamic syscall overhead for statically compiled modules.
The kernel tracks syscall users so that modules can safely unregister them.

But if the module is not unloadable or was compiled into the kernel, there is
no need to do this.

Achieve this by adding SY_THR_STATIC_KLD macro which expands to SY_THR_STATIC
during kernel build and 0 otherwise.

Reviewed by:	kib (previous version)
MFC after:	2 weeks
2014-10-26 19:42:44 +00:00
rmacklem
d79bf0f49f Add an nfssvc() option to the kernel for the new NFS client
which dumps out the actual options being used by an NFS mount.
This will be used to implement a "-m" option for nfsstat(1).

Reviewed by:	alfred
MFC after:	2 weeks
2012-12-02 01:16:04 +00:00
rmacklem
813fc27188 Add two new options to the nfssvc(2) syscall that allow
processes running as root to suspend/resume execution
of the kernel nfsd threads. An earlier version of this
patch was tested by Vincent Hoffman (vince at unsane.co.uk)
and John Hickey (jh at deterlab.net).

Reviewed by:	kib
MFC after:	2 weeks
2012-10-14 22:33:17 +00:00
kevlo
ceb08698f2 Revert previous commit...
Pointyhat to:	kevlo (myself)
2012-10-10 08:36:38 +00:00
kevlo
8747a46991 Prefer NULL over 0 for pointers 2012-10-09 08:27:40 +00:00
kmacy
99851f359e In order to maximize the re-usability of kernel code in user space this
patch modifies makesyscalls.sh to prefix all of the non-compatibility
calls (e.g. not linux_, freebsd32_) with sys_ and updates the kernel
entry points and all places in the code that use them. It also
fixes an additional name space collision between the kernel function
psignal and the libc function of the same name by renaming the kernel
psignal kern_psignal(). By introducing this change now we will ease future
MFCs that change syscalls.

Reviewed by:	rwatson
Approved by:	re (bz)
2011-09-16 13:58:51 +00:00
rmacklem
a23ee88c7e Modify the NFS nfssvc(2) syscall so that it allows
anyone to get the statistics for the new NFS subsystem.

MFC after:	2 weeks
2011-05-05 02:00:53 +00:00
rmacklem
076e0f39cd Modify the experimental NFSv4 server so that it posts a SIGUSR2
signal to the master nfsd daemon whenever the stable restart
file has been modified. This will allow the master nfsd daemon
to maintain an up to date backup copy of the file. This is
enabled via the nfssvc() syscall, so that older nfsd daemons
will not be signaled.

Reviewed by:	jhb
MFC after:	1 week
2011-01-14 23:30:35 +00:00
rwatson
da78c9e4a2 Replace AUDIT_ARG() with variable argument macros with a set more more
specific macros for each audit argument type.  This makes it easier to
follow call-graphs, especially for automated analysis tools (such as
fxr).

In MFC, we should leave the existing AUDIT_ARG() macros as they may be
used by third-party kernel modules.

Suggested by:	brooks
Approved by:	re (kib)
Obtained from:	TrustedBSD Project
MFC after:	1 week
2009-06-27 13:58:44 +00:00
rmacklem
e716acd50b Adding sys/nfs/nfssvc.h and sys/nfs/nfs_nfssvc.c in preparation for
sharing of the nfssvc() system call between nfsserver and the nfsv4
	server. Building of nfs_nfssvc.c will be committed later, at the time
	the .c files in sys/nfsserver are updated. To do so now would result in
	nfssvc() multiply defined.

Submitted by:	rmacklem
Reviewed by:	dfr
Approved by:	kib (mentor)
2009-04-07 19:06:51 +00:00